Excess office donation
This is for the kids, to read someday. I think they're too young to fully appreciate it now.
Whenever there's a "gift collection" at work for a birthday, retirement, illness, or whatever -- I always put in about three(?) times what "normal" people put in. (I have a standard amount.)
My reasoning is that my excess donation inflates the total, which then gives the recipient the impression of a greater number of supportive people. This, presumably, makes the recipient happier, and/or feel more cared for. This is a good thing.
I'm willing to spend a bit extra, if it makes someone happy.